How To Fix >U357 - Select a block size

Get instant SAP help. Start your 7-day free trial now.

SAP Error Message - Details

• Message type: E = Error

• Message class: >U -

• Message number: 357

• Message text: Select a block size

Smart SAP Assistant

• What is the cause and solution for SAP error message >U357 - Select a block size

  The SAP error message U357 indicates that there is an issue with the block size specified in a process, typically related to the creation of lots in a production or inventory management context. The message states that only a maximum of 99 lots can be created, and the block size must be selected accordingly.
  Cause:
  
  Block Size Exceeded: The error occurs when the block size specified for creating lots exceeds the maximum limit of 99. This can happen if the configuration or input parameters are set incorrectly.
  Configuration Settings: The system may have a configuration that limits the number of lots that can be processed in a single transaction or batch.
  Data Entry Error: There may be an error in the data entry where the block size is set to a value greater than 99.
  
  Solution:
  
  Adjust Block Size: Review the block size parameter in the transaction or program you are using. Ensure that it is set to a value less than or equal to 99.
  Configuration Review: Check the configuration settings in the relevant SAP module (e.g., Production Planning, Inventory Management) to ensure that the limits for lot creation are set correctly.
  Data Validation: Validate the data being entered to ensure that it complies with the system's requirements. If you are using a custom program or report, check the logic to ensure it does not attempt to create more than 99 lots at once.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the transaction or process you are working with.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates and patches.
  Transaction Codes: Familiarize yourself with the transaction codes related to lot creation and inventory management, such as MB1C, MB31, or CO01, depending on your specific use case.
  User Exits and BAdIs: If you are using custom enhancements, review any user exits or BAdIs that might affect the lot creation process.
  Testing: After making adjustments, conduct tests to ensure that the changes resolve the issue without introducing new problems.
  
  If the problem persists after trying these solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.

Get instant SAP help. Start your 7-day free trial now.

Related SAP Error Messages

Click the links below to see the following related messages:

• >U356 The &1 name can occupy a maximum of ten spaces when splitting in the lot
  Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...

• >U355 Administration record for run &1, date &2 cannot be created
  Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...

• >U358 &1 &2 already exists
  Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...

• >U359 Payment lot &1: No more items can be added
  Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...

Click on this link to search all SAP messages.

SAP Error Message - Details

• Message type: E = Error

• Message class: >U -

• Message number: 357

• Message text: Select a block size

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 >U357 - Select a block size

  The SAP error message U357 indicates that there is an issue with the block size specified in a process, typically related to the creation of lots in a production or inventory management context. The message states that only a maximum of 99 lots can be created, and the block size must be selected accordingly.
  Cause:
  
  Block Size Exceeded: The error occurs when the block size specified for creating lots exceeds the maximum limit of 99. This can happen if the configuration or input parameters are set incorrectly.
  Configuration Settings: The system may have a configuration that limits the number of lots that can be processed in a single transaction or batch.
  Data Entry Error: There may be an error in the data entry where the block size is set to a value greater than 99.
  
  Solution:
  
  Adjust Block Size: Review the block size parameter in the transaction or program you are using. Ensure that it is set to a value less than or equal to 99.
  Configuration Review: Check the configuration settings in the relevant SAP module (e.g., Production Planning, Inventory Management) to ensure that the limits for lot creation are set correctly.
  Data Validation: Validate the data being entered to ensure that it complies with the system's requirements. If you are using a custom program or report, check the logic to ensure it does not attempt to create more than 99 lots at once.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the transaction or process you are working with.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates and patches.
  Transaction Codes: Familiarize yourself with the transaction codes related to lot creation and inventory management, such as MB1C, MB31, or CO01, depending on your specific use case.
  User Exits and BAdIs: If you are using custom enhancements, review any user exits or BAdIs that might affect the lot creation process.
  Testing: After making adjustments, conduct tests to ensure that the changes resolve the issue without introducing new problems.
  
  If the problem persists after trying these solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.