How To Fix /ACCGO/UIS_API157 - EXTID &1: Event ID &2: Undefined vendor not supported for app. inst. &3

/ACCGO/UIS_API157 - Overview

• Message type: E = Error

• Message class: /ACCGO/UIS_API -

• Message number: 157

• Message text: EXTID &1: Event ID &2: Undefined vendor not supported for app. inst. &3

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /ACCGO/UIS_API157 - EXTID &1: Event ID &2: Undefined vendor not supported for app. inst. &3 ?

  The SAP error message /ACCGO/UIS_API157 EXTID &1: Event ID &2: Undefined vendor not supported for app. inst. &3 typically indicates that there is an issue related to the integration of a vendor in the context of an application instance. This error is often encountered in the context of SAP applications that deal with financial transactions, vendor management, or integration with external systems.
  
  Cause:
  
  Undefined Vendor: The vendor referenced in the error message is not defined in the system. This could be due to a missing vendor master record or an incorrect vendor ID being used in the transaction.
  
  Configuration Issues: There may be configuration issues in the application instance that prevent it from recognizing the vendor.
  Data Consistency: There could be inconsistencies in the data, such as missing or incorrect entries in related tables.
  Integration Issues: If the application is integrated with other systems, there may be issues with the data being sent or received,