How To Fix /ISDFPS/OM_PROXY035 - External Material Group '&1' cannot be converted

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/OM_PROXY -

• Message number: 035

• Message text: External Material Group '&1' cannot be converted

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 /ISDFPS/OM_PROXY035 - External Material Group '&1' cannot be converted ?

  The SAP error message /ISDFPS/OM_PROXY035 indicates that there is an issue with the conversion of an external material group in the system. This error typically arises in the context of SAP's Integrated Business Planning (IBP) or other related modules where external material groups are used for categorizing materials.
  Cause:
  
  Invalid External Material Group: The external material group specified in the error message (&1) may not exist in the system or may not be correctly defined.
  Data Mapping Issues: There may be a mismatch in the data mapping between the external system and SAP, leading to the inability to convert the external material group.
  Configuration Issues: The configuration settings for external material groups may not be properly set up in the SAP system.
  Authorization Issues: The user may not have the necessary authorizations to access or convert the specified external material group.
  
  Solution:
  
  Check External Material Group: Verify that the external material group specified in the error message exists in the system. You can do this by checking the relevant tables or using transaction codes like MM03 (Display Material) or OMD1 (Maintain External Material Groups).
  Review Data Mapping: Ensure that the data mapping between the external system and SAP is correctly configured. This may involve checking the integration settings or middleware configurations.
  Configuration Review: Review the configuration settings for external material groups in the SAP system. Ensure that all necessary settings are in place and that the external material group is correctly defined.
  Authorization Check: Ensure that the user has the necessary authorizations to access and convert the external material group. This may involve checking user roles and permissions.
  Consult Documentation: Refer to SAP documentation or notes related to the specific error message for additional troubleshooting steps or known issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for the error message number in the SAP Support Portal.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as SE11 (Data Dictionary), SE80 (Object Navigator), and SLG1 (Application Log).
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the issue persists after following these steps, it may be necessary to involve your SAP Basis or technical team for further investigation.