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

SAP Error Message - Details

• 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, leading to the vendor not being recognized.
  
  Solution:
  
  
  Check Vendor Master Data:
  
  Verify that the vendor ID mentioned in the error message exists in the vendor master data (transaction code XK03 or MK03).
  If the vendor does not exist, create a new vendor record.
  
  
  
  Review Application Configuration:
  
  Check the configuration settings for the application instance to ensure that it is set up to recognize the vendor.
  Ensure that the vendor is assigned to the correct company code and purchasing organization.
  
  
  
  Data Consistency Checks:
  
  Run consistency checks on the relevant tables to identify any discrepancies.
  Use transaction codes like SE11 to check the database tables related to vendors and application instances.
  
  
  
  Integration Monitoring:
  
  If the application is integrated with other systems, check the integration logs for any errors or warnings that might indicate issues with data transfer.
  Ensure that the data being sent to SAP includes valid vendor information.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific application you are using to see if there are any known issues or additional configuration steps required.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. Provide them with the error message details and any relevant context.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as XK03 (Display Vendor), MK03 (Display Purchasing Info Record), and SE11 (Data Dictionary).
  SAP Notes: Search for SAP Notes related to the specific error message or the application you are working with, as they may provide additional insights or patches.
  Community Forums: Check SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.