How To Fix GHO_ALLOC_UI155 - Start Date/Time cannot be same as End Date/Time

SAP Error Message - Details

• Message type: E = Error

• Message class: GHO_ALLOC_UI - Message Class for UI for Allocation

• Message number: 155

• Message text: Start Date/Time cannot be same as End Date/Time

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message GHO_ALLOC_UI155 - Start Date/Time cannot be same as End Date/Time ?

  The SAP error message GHO_ALLOC_UI155, which states "Start Date/Time cannot be same as End Date/Time," typically occurs in the context of scheduling or allocation processes within SAP, such as in project management, resource allocation, or event planning. This error indicates that the system requires a distinct start and end time for a given task or event, and the values provided are identical.
  Cause:
  
  Identical Start and End Times: The most common cause of this error is that the user has entered the same date and time for both the start and end fields. This is not allowed because it does not make logical sense for an event or task to have no duration.
  Data Entry Error: It may simply be a mistake during data entry where the user inadvertently copied the start time to the end time.
  System Configuration: In some cases, the system configuration or business rules may enforce this requirement, preventing the creation of tasks or events that do not have a duration.
  
  Solution:
  
  Check Input Values: Review the values entered for the start and end date/time fields. Ensure that the end date/time is later than the start date/time.
  Adjust Dates/Times: Modify the end date/time to be at least one minute later than the start date/time to create a valid duration.
  Validation: Implement validation checks in the user interface to prevent users from entering identical start and end times in the future.
  User Training: Provide training or documentation to users to help them understand the importance of entering distinct start and end times.
  
  Related Information:
  
  SAP Documentation: Refer to SAP's official documentation for the specific module you are working with (e.g., Project System, Resource Management) for more details on date/time handling.
  Transaction Codes: Depending on the context, you may be using specific transaction codes (e.g., CJ20N for project management) where this error can occur.
  Support Forums: Check SAP community forums or support channels for similar issues and solutions shared by other users.
  Debugging: If the issue persists and seems to be related to system behavior rather than user input, consider debugging the process or consulting with your SAP technical team.
  
  By ensuring that the start and end times are distinct, you should be able to resolve the GHO_ALLOC_UI155 error and proceed with your task or event scheduling in SAP.