diff --git a/swad_ID.c b/swad_ID.c
index c4f3d4451..ab7ca3d79 100644
--- a/swad_ID.c
+++ b/swad_ID.c
@@ -367,7 +367,10 @@ void ID_PutLinkToChangeUsrIDs (void)
       Act_PutContextualLink (ActFrmUsrAcc,NULL,
 			     "arroba",Txt_Change_IDs);
    else									// Not me
-      Act_PutContextualLink (ActFrmIDsOthUsr,Usr_PutParamOtherUsrCodEncrypted,
+      Act_PutContextualLink ( Gbl.Usrs.Other.UsrDat.RoleInCurrentCrsDB == Rol_STUDENT ? ActFrmIDsOthStd :
+	                     (Gbl.Usrs.Other.UsrDat.RoleInCurrentCrsDB == Rol_TEACHER ? ActFrmIDsOthTch :
+	                	                                                        ActFrmIDsOthGst),	// Guest, visitor or admin
+                             Usr_PutParamOtherUsrCodEncrypted,
 			     "arroba",Txt_Change_IDs);
   }
 
@@ -452,7 +455,9 @@ void ID_ShowFormChangeUsrID (const struct UsrData *UsrDat,bool ItsMe)
 	       Act_FormStart (ActRemIDMe);
 	    else
 	      {
-	       Act_FormStart (ActRemIDOth);
+	       Act_FormStart ( UsrDat->RoleInCurrentCrsDB == Rol_STUDENT ? ActRemIDOthStd :
+	                      (UsrDat->RoleInCurrentCrsDB == Rol_TEACHER ? ActRemIDOthTch :
+	                	                                           ActRemIDOthGst));	// Guest, visitor or admin
 	       Usr_PutParamUsrCodEncrypted (UsrDat->EncryptedUsrCod);
 	      }
 	    fprintf (Gbl.F.Out,"<input type=\"hidden\" name=\"UsrID\" value=\"%s\" />",
@@ -497,7 +502,9 @@ void ID_ShowFormChangeUsrID (const struct UsrData *UsrDat,bool ItsMe)
 	 Act_FormStart (ActNewIDMe);
       else
 	{
-	 Act_FormStart (ActNewIDOth);
+	 Act_FormStart ( UsrDat->RoleInCurrentCrsDB == Rol_STUDENT ? ActNewIDOthStd :
+	                (UsrDat->RoleInCurrentCrsDB == Rol_TEACHER ? ActNewIDOthTch :
+	                	                                     ActNewIDOthGst));	// Guest, visitor or admin
 	 Usr_PutParamUsrCodEncrypted (UsrDat->EncryptedUsrCod);
 	}
       fprintf (Gbl.F.Out,"<input type=\"text\" name=\"NewID\""
diff --git a/swad_action.c b/swad_action.c
index 0fd1bbdd2..bd5fb149d 100644
--- a/swad_action.c
+++ b/swad_action.c
@@ -958,9 +958,16 @@ Users:
 	779b. ActRcvFrmEnrSevStd	Receive a form with IDs of users to be registeres/removed to/from current course
 	779c. ActRcvFrmEnrSevTch	Receive a form with IDs of users to be registeres/removed to/from current course
 
-	780. ActFrmIDOthUsr		Show form to the change of the IDs of another user
-	781. ActRemIDOth		Remove one of the IDs of another user
-	782. ActNewIDOth		Create a new user's ID for another user
+	780b. ActFrmIDsOthGst		Show form to the change of the IDs of another user
+	780c. ActFrmIDsOthStd		Show form to the change of the IDs of another user
+	780d. ActFrmIDsOthTch		Show form to the change of the IDs of another user
+	781b. ActRemIDOthGst		Remove one of the IDs of another user
+	781c. ActRemIDOthStd		Remove one of the IDs of another user
+	781d. ActRemIDOthTch		Remove one of the IDs of another user
+	782b. ActNewIDOthGst		Create a new user's ID for another user
+	782c. ActNewIDOthStd		Create a new user's ID for another user
+	782d. ActNewIDOthTch		Create a new user's ID for another user
+
 	783. ActFrmPwdOthUsr		Show form to the change of the password of another user
 	784. ActChgPwdOthUsr		Change the password of another user
 	785. ActRemUsrCrs		Remove a user from the current course
@@ -2374,9 +2381,16 @@ struct Act_Actions Act_Actions[Act_NUM_ACTIONS] =
    /* ActRcvFrmEnrSevStd*/{1427,-1,TabUsr,ActLstStd		,0x1FE,0x1FE,0x1FE,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,Enr_ReceiveFormAdminStds	,NULL},
    /* ActRcvFrmEnrSevTch*/{1428,-1,TabUsr,ActLstTch		,0x1FE,0x1FE,0x1FE,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,Enr_ReceiveFormAdminTchs	,NULL},
 
-   /* ActFrmIDsOthUsr	*/{1239,-1,TabUsr,ActLstStd		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_ShowFormOthIDs		,NULL},
-   /* ActRemIDOth	*/{1240,-1,TabUsr,ActLstStd		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_RemoveOtherUsrID		,NULL},
-   /* ActNewIDOth	*/{1241,-1,TabUsr,ActLstStd		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_NewOtherUsrID		,NULL},
+   /* ActFrmIDsOthGst	*/{1447,-1,TabUsr,ActLstGst		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_ShowFormOthIDs		,NULL},
+   /* ActFrmIDsOthStd	*/{1448,-1,TabUsr,ActLstStd		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_ShowFormOthIDs		,NULL},
+   /* ActFrmIDsOthTch	*/{1449,-1,TabUsr,ActLstTch		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_ShowFormOthIDs		,NULL},
+   /* ActRemIDOthGst	*/{1450,-1,TabUsr,ActLstGst		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_RemoveOtherUsrID		,NULL},
+   /* ActRemIDOthStd	*/{1451,-1,TabUsr,ActLstStd		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_RemoveOtherUsrID		,NULL},
+   /* ActRemIDOthTch	*/{1452,-1,TabUsr,ActLstTch		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_RemoveOtherUsrID		,NULL},
+   /* ActNewIDOthGst	*/{1453,-1,TabUsr,ActLstGst		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_NewOtherUsrID		,NULL},
+   /* ActNewIDOthStd	*/{1454,-1,TabUsr,ActLstStd		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_NewOtherUsrID		,NULL},
+   /* ActNewIDOthTch	*/{1455,-1,TabUsr,ActLstTch		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,ID_NewOtherUsrID		,NULL},
+
    /* ActFrmPwdOthUsr	*/{ 598,-1,TabUsr,ActLstStd		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,NULL			,Pwd_ShowFormOthPwd		,NULL},
    /* ActChgPwdOthUsr	*/{  82,-1,TabUsr,ActLstStd		,0x1E0,0x1E0,0x1E0,Act_CONTENT_NORM,Act_MAIN_WINDOW,Pwd_UpdateOtherPwd1		,Pwd_UpdateOtherPwd2		,NULL},
 
@@ -3968,9 +3982,9 @@ Act_Action_t Act_FromActCodToAction[1+Act_MAX_ACTION_COD] =	// Do not reuse uniq
 	ActRemAnn,		// #1236
 	ActWriAnn,		// #1237
 	ActRcvAnn,		// #1238
-	ActFrmIDsOthUsr,	// #1239
-	ActRemIDOth,		// #1240
-	ActNewIDOth,		// #1241
+	-1,			// #1239 (obsolete action)
+	-1,			// #1240 (obsolete action)
+	-1,			// #1241 (obsolete action)
 	ActSeeSyl,		// #1242
 	ActChgMnu,		// #1243
 	ActReqCtrLog,		// #1244
@@ -4179,6 +4193,15 @@ Act_Action_t Act_FromActCodToAction[1+Act_MAX_ACTION_COD] =	// Do not reuse uniq
 	ActCreGst,		// #1444
 	ActCreStd,		// #1445
 	ActCreTch,		// #1446
+	ActFrmIDsOthGst,	// #1447
+	ActFrmIDsOthStd,	// #1448
+	ActFrmIDsOthTch,	// #1449
+	ActRemIDOthGst,		// #1450
+	ActRemIDOthStd,		// #1451
+	ActRemIDOthTch,		// #1452
+	ActNewIDOthGst,		// #1453
+	ActNewIDOthStd,		// #1454
+	ActNewIDOthTch,		// #1455
 	};
 
 /*****************************************************************************/
diff --git a/swad_action.h b/swad_action.h
index cde8537f8..cf50cd08b 100644
--- a/swad_action.h
+++ b/swad_action.h
@@ -69,9 +69,9 @@ typedef enum
 
 typedef int Act_Action_t;	// Must be a signed type, because -1 is used to indicate obsolete action
 
-#define Act_NUM_ACTIONS	(7+52+15+90+73+68+204+182+131+168+28+79)
+#define Act_NUM_ACTIONS	(7+52+15+90+73+68+204+182+137+168+28+79)
 
-#define Act_MAX_ACTION_COD 1446
+#define Act_MAX_ACTION_COD 1455
 
 #define Act_MAX_OPTIONS_IN_MENU_PER_TAB 20
 
@@ -988,31 +988,37 @@ typedef int Act_Action_t;	// Must be a signed type, because -1 is used to indica
 #define ActRcvFrmEnrSevStd	(ActChgNumRowFooGrp+109)
 #define ActRcvFrmEnrSevTch	(ActChgNumRowFooGrp+110)
 
-#define ActFrmIDsOthUsr		(ActChgNumRowFooGrp+111)
-#define ActRemIDOth		(ActChgNumRowFooGrp+112)
-#define ActNewIDOth		(ActChgNumRowFooGrp+113)
-#define ActFrmPwdOthUsr		(ActChgNumRowFooGrp+114)
-#define ActChgPwdOthUsr		(ActChgNumRowFooGrp+115)
-#define ActRemUsrCrs		(ActChgNumRowFooGrp+116)
-#define ActRemUsrGbl		(ActChgNumRowFooGrp+117)
+#define ActFrmIDsOthGst		(ActChgNumRowFooGrp+111)
+#define ActFrmIDsOthStd		(ActChgNumRowFooGrp+112)
+#define ActFrmIDsOthTch		(ActChgNumRowFooGrp+113)
+#define ActRemIDOthGst		(ActChgNumRowFooGrp+114)
+#define ActRemIDOthStd		(ActChgNumRowFooGrp+115)
+#define ActRemIDOthTch		(ActChgNumRowFooGrp+116)
+#define ActNewIDOthGst		(ActChgNumRowFooGrp+117)
+#define ActNewIDOthStd		(ActChgNumRowFooGrp+118)
+#define ActNewIDOthTch		(ActChgNumRowFooGrp+119)
+#define ActFrmPwdOthUsr		(ActChgNumRowFooGrp+120)
+#define ActChgPwdOthUsr		(ActChgNumRowFooGrp+121)
+#define ActRemUsrCrs		(ActChgNumRowFooGrp+122)
+#define ActRemUsrGbl		(ActChgNumRowFooGrp+123)
 
-#define ActReqRemAllStdCrs	(ActChgNumRowFooGrp+118)
-#define ActRemAllStdCrs		(ActChgNumRowFooGrp+119)
+#define ActReqRemAllStdCrs	(ActChgNumRowFooGrp+124)
+#define ActRemAllStdCrs		(ActChgNumRowFooGrp+125)
 
-#define ActReqRemOldUsr		(ActChgNumRowFooGrp+120)
-#define ActRemOldUsr		(ActChgNumRowFooGrp+121)
+#define ActReqRemOldUsr		(ActChgNumRowFooGrp+126)
+#define ActRemOldUsr		(ActChgNumRowFooGrp+127)
 
-#define ActSeePubPrf		(ActChgNumRowFooGrp+122)
-#define ActCal1stClkTim		(ActChgNumRowFooGrp+123)
-#define ActCalNumClk		(ActChgNumRowFooGrp+124)
-#define ActCalNumFilVie		(ActChgNumRowFooGrp+125)
-#define ActCalNumForPst		(ActChgNumRowFooGrp+126)
-#define ActCalNumMsgSnt		(ActChgNumRowFooGrp+127)
+#define ActSeePubPrf		(ActChgNumRowFooGrp+128)
+#define ActCal1stClkTim		(ActChgNumRowFooGrp+129)
+#define ActCalNumClk		(ActChgNumRowFooGrp+130)
+#define ActCalNumFilVie		(ActChgNumRowFooGrp+131)
+#define ActCalNumForPst		(ActChgNumRowFooGrp+132)
+#define ActCalNumMsgSnt		(ActChgNumRowFooGrp+133)
 
-#define ActFolUsr		(ActChgNumRowFooGrp+128)
-#define ActUnfUsr		(ActChgNumRowFooGrp+129)
-#define ActSeeFlg		(ActChgNumRowFooGrp+130)
-#define ActSeeFlr		(ActChgNumRowFooGrp+131)
+#define ActFolUsr		(ActChgNumRowFooGrp+134)
+#define ActUnfUsr		(ActChgNumRowFooGrp+135)
+#define ActSeeFlg		(ActChgNumRowFooGrp+136)
+#define ActSeeFlr		(ActChgNumRowFooGrp+137)
 
 /*****************************************************************************/
 /******************************* Messages tab ********************************/
diff --git a/swad_changelog.h b/swad_changelog.h
index d14109225..51420e6d6 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -98,11 +98,26 @@
 /****************************** Public constants *****************************/
 /*****************************************************************************/
 
-#define Log_PLATFORM_VERSION	"SWAD 14.132.5 (2015/09/16)"
+#define Log_PLATFORM_VERSION	"SWAD 14.132.6 (2015/09/17)"
 
 // Number of lines (includes comments but not blank lines) has been got with the following command:
 // nl swad*.c swad*.h css/swad*.css py/swad*.py js/swad*.js soap/swad*.h sql/swad*.sql | tail -1
 /*
+        Version 14.132.6: Sep 17, 2015	Changes in users' IDs. (184640 lines)
+					12 changes necessary in database:
+UPDATE actions SET Obsolete='Y' WHERE ActCod='1239';
+INSERT INTO actions (ActCod,Language,Obsolete,Txt) VALUES ('1447','es','N','Solicitar edici&oacute;n ID invitado');
+INSERT INTO actions (ActCod,Language,Obsolete,Txt) VALUES ('1448','es','N','Solicitar edici&oacute;n ID estudiante');
+INSERT INTO actions (ActCod,Language,Obsolete,Txt) VALUES ('1449','es','N','Solicitar edici&oacute;n ID profesor');
+UPDATE actions SET Obsolete='Y' WHERE ActCod='1240';
+INSERT INTO actions (ActCod,Language,Obsolete,Txt) VALUES ('1450','es','N','Eliminar ID invitado');
+INSERT INTO actions (ActCod,Language,Obsolete,Txt) VALUES ('1451','es','N','Eliminar ID estudiante');
+INSERT INTO actions (ActCod,Language,Obsolete,Txt) VALUES ('1452','es','N','Eliminar ID profesor');
+UPDATE actions SET Obsolete='Y' WHERE ActCod='1241';
+INSERT INTO actions (ActCod,Language,Obsolete,Txt) VALUES ('1453','es','N','Crear ID invitado');
+INSERT INTO actions (ActCod,Language,Obsolete,Txt) VALUES ('1454','es','N','Crear ID estudiante');
+INSERT INTO actions (ActCod,Language,Obsolete,Txt) VALUES ('1455','es','N','Crear ID profesor');
+
         Version 14.132.5: Sep 16, 2015	Changes in user enrollment. (184592 lines)
 					4 changes necessary in database:
 UPDATE actions SET Obsolete='Y' WHERE ActCod='440';
diff --git a/swad_user.c b/swad_user.c
index ef5c2b8de..5a150c137 100644
--- a/swad_user.c
+++ b/swad_user.c
@@ -1026,7 +1026,7 @@ bool Usr_CheckIfUsrBelongsToIns (long UsrCod,long InsCod,bool CountOnlyAcceptedC
 		  " WHERE crs_usr.UsrCod='%ld'%s"
 		  " AND crs_usr.CrsCod=courses.CrsCod"
 		  " AND courses.DegCod=degrees.DegCod"
-		  " AND degrees.CtrCod=institutions.CtrCod"
+		  " AND degrees.CtrCod=centres.CtrCod"
 		  " AND centres.InsCod='%ld'",
 	    UsrCod,SubQuery,InsCod);
    return (DB_QueryCOUNT (Query,"can not check if a user belongs to an institution") != 0);