How To Fix RMPS_POST_API016 - The declare function is not supported by the service provider

SAP Error Message - Details

• Message type: E = Error

• Message class: RMPS_POST_API - PRO Messages for the Incoming Post Item

• Message number: 016

• Message text: The declare function is not supported by the service provider

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 RMPS_POST_API016 - The declare function is not supported by the service provider ?

  The SAP error message RMPS_POST_API016, which states "The declare function is not supported by the service provider," typically occurs in the context of using the SAP Post API, particularly when dealing with service providers that do not support certain functionalities.
  
  Cause:
  
  Unsupported Functionality: The error indicates that the service provider you are trying to use does not support the "declare" function. This could be due to limitations in the service provider's capabilities or configuration.
  
  Configuration Issues: There may be a misconfiguration in the service provider settings or the API setup that prevents the use of the declare function.
  Version Compatibility: The version of the service provider or the API you are using may not support the declare function, especially if there have been recent updates or changes.
  
  
  Solution:
  
  Check Service Provider Documentation: Review the documentation for the service provider to confirm whether the declare function is supported. If it is not, you may need to find