How To Fix MJ003 - No entry for field & (contents not known)

SAP Error Message - Details

• Message type: E = Error

• Message class: MJ - Field Selection

• Message number: 003

• Message text: No entry for field & (contents not known)

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 MJ003 - No entry for field & (contents not known) ?

  The SAP error message MJ003, which states "No entry for field & (contents not known)," typically occurs in the context of Material Management (MM) or Production Planning (PP) modules. This error indicates that the system is unable to find a valid entry for a specific field in the database, which can lead to issues when trying to process transactions or access certain data.
  Causes:
  
  Missing Master Data: The most common cause is that the required master data (such as material master, vendor master, or customer master) is not maintained or is incomplete.
  Incorrect Configuration: There may be configuration issues in the system that prevent the proper mapping of fields.
  Data Inconsistency: There could be inconsistencies in the data, such as missing entries in related tables.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or access certain data.
  Custom Fields: If custom fields are used and not properly defined or populated, this error can occur.
  
  Solutions:
  
  Check Master Data: Verify that the relevant master data is correctly maintained. For example, if the error is related to a material, check the material master record to ensure all required fields are filled out.
  Review Configuration: Ensure that the configuration settings in the system are correct. This may involve checking the settings in the IMG (Implementation Guide) for the relevant module.
  Data Consistency Check: Run consistency checks or reports to identify any missing or inconsistent data entries. You can use transaction codes like SE16 or SE11 to check the relevant database tables.
  Authorization Check: Ensure that the user has the necessary authorizations to access the data. This may involve checking user roles and profiles.
  Debugging: If the issue persists, consider debugging the program or transaction to identify where the error is occurring. This may require the assistance of a developer or SAP Basis consultant.
  Consult Documentation: Refer to SAP documentation or support notes related to the specific error message for additional guidance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material) to manage material master data.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for notes using the SAP Support Portal.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or a consultant for further assistance.