Message type: E = Error
Message class:  /SAPCE/IU_BBHU -  
Message number: 113
Message text: Start date is less than device validity start date (&1)
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.
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.
The SAP error message /SAPCE/IU_BBHU113 Start date is less than device validity start date (&1) typically occurs in the context of device management or maintenance in SAP, particularly when dealing with equipment or functional locations. This error indicates that the start date you are trying to set for a particular operation or transaction is earlier than the validity start date of the device or equipment in question.
Cause: Date Mismatch: The start date you are entering is before the validity start date of the device. This could happen if the device was created or activated after the date you are trying to use. Incorrect Data Entry: There may be a mistake in the date you are entering, either due to a typographical error or misunderstanding of the date format. System Configuration: The device may have been configured with specific validity periods that restrict operations to certain dates.
Solution: Check Validity Dates: Review the validity start date
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/SAPCE/IU_BBHU112 Date field is required. Please enter valid date
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPCE/IU_BBHU111 Device &1 linked to multiple inst. Please specify an installation
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPCE/IU_BBHU114 End date is greater than device validity date (&1)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPCE/IU_BBHU115 Changes were saved successfully
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.