How To Fix C_306 - Value in 'Header Structure' field is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: C_ - CRM Integration Messages

• Message number: 306

• Message text: Value in 'Header Structure' field is missing

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 C_306 - Value in 'Header Structure' field is missing ?

  The SAP error message C_306, which states "Value in 'Header Structure' field is missing," typically occurs in the context of document processing, such as when creating or modifying documents in SAP. This error indicates that a required field in the header structure of the document is not populated, which is necessary for the system to process the document correctly.
  Cause:
  
  Missing Mandatory Fields: The header structure of the document may have mandatory fields that are not filled in. This could be due to user oversight or a system configuration issue.
  Custom Development: If there are custom enhancements or modifications in the SAP system, they might not be handling the header structure correctly, leading to missing values.
  Data Transfer Issues: If data is being transferred from another system or through an interface, there may be issues with the data mapping that result in missing header values.
  User Authorization: Sometimes, users may not have the necessary authorizations to fill in certain fields, leading to them being left blank.
  
  Solution:
  
  Check Required Fields: Review the document type and ensure that all mandatory fields in the header structure are filled in. This can usually be done by checking the configuration settings for the document type in the relevant SAP module (e.g., Sales and Distribution, Materials Management).
  Review Custom Code: If there are any custom developments, review the code to ensure that it correctly populates the header structure fields. Debugging the code may help identify where the value is not being set.
  Data Validation: If data is being imported or transferred, validate the data source to ensure that all required fields are being populated correctly before the data reaches SAP.
  User Training: Ensure that users are trained on the importance of filling in all required fields when creating or modifying documents in SAP.
  Authorization Check: Verify that the user has the necessary authorizations to access and fill in the required fields.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as SE80 (Object Navigator) for checking custom code or SE37 (Function Module) for analyzing function modules related to document processing.
  Documentation: Review SAP documentation for the specific module you are working with to understand the required fields and their significance in the header structure.
  
  If the issue persists after checking these areas, it may be beneficial to consult with your SAP support team or reach out to SAP support for further assistance.