3322916 - Error in SLG1 for BIB masterdata replication : "adapter.oauth.token.saml.SAMLAuthent"

While replicating the employee masterdata, the followed error below is logged in the SL1 transaction:

Query has response with status Failed; ECPAO_QRY_ADM table updated
adapter.oauth.token.saml.SAMLAuthent

• SAP ERP 6.0 
• SAP enhancement package 1 for SAP ERP 6.0
• SAP enhancement package 2 for SAP ERP 6.0
• SAP enhancement package 3 for SAP ERP 6.0
• SAP enhancement package 4 for SAP ERP 6.0
• SAP enhancement package 5 for SAP ERP 6.0
• SAP enhancement package 6 for SAP ERP 6.0
• SAP enhancement package 7 for SAP ERP 6.0
• SAP enhancement package 8 for SAP ERP 6.0
• PA_SE_IN Addon - Business Integration Builder

1. Run  report ECPAO_EE_ORG_REPL_QUERY
2. Select a variant or fill the mandatory entries
3. Check the logs in SLG1

errorMessage":"Unable to authenticate the client (Login failed - login from this IP address xxx.xxx.xxx.xxx is prohibited."

1. Revise the logs error in SLG1
2. Collect the message error in the SRTUTIL/SXI_MONITOR transaction for the interface EmployeeMasterDataAndOrgAssignmentBundleReplicationRequest_In
   Message error can be checked in the XML file with the string:
   com.sap.it.rt.adapter.oauth.token.saml.SAMLAuthenticationException: Exception occured while fetching SAML OAuth Token. Reason: status code: 401, reason phrase: {"errorHttpCode":"401","errorMessage":"Unable to authenticate the client (Login failed - login from this IP address xxx.xxx.xxx.xx is prohibited. You can set an API login exception to allow login from this IP address. 
3. Add IP address (or IP address Range)  on the IP Restriction Management, through Admin Centre > Tools.
   For more information, read documentation: SAP Help Blog | Restricting API Access by IP Addresses or IP Address Ranges

SAMLAuthenticationException, SAMLAuthent, SLG1, adapter.oauth.token.saml.SAMLAuthent , KBA , LOD-EC-INT-EE , Employee Integration EC to ERP On Premise , Problem