Hi philamoore,
Thank you for your post, and welcome to the Community forum!
AccountRight is designed not to permit negative inventory quantities or values. Therefore, if the transaction you're processing decreases these amounts below zero, an error would be triggered. In such instances, please refer to this Help article, Error: Non-zero value. This article provides comprehensive information and guidance on the necessary steps to rectify this error in your file.
I would also like to extend my gratitude to Mike_James for his immediate and timely response.
Please feel free to reach out if you need further help.
If my response has answered your inquiry, please click "Accept as Solution" to help other users find this information.
Cheers,
Princess