How to resolve the "Error saving the Query field.Invalid object name" error?

the "error saving the query field invalid object name" error typically indicates that marketing cloud is unable to find a specific data extension or a field how to resolve this? check if the field still exists in the target data extensions, you can check the fields that are included in a data extension through the output tab check if the data extension was moved to a different folder with deselect search, you can easily find the data extension that you are searching and in which folder it is located and it is free ! check if the data extension was deleted, you can find more information on how you can fix this issue on the following article if you are attempting to use a selection or field that is currently in use by another activity, you may encounter this error due to a read lock implemented by sfmc to ensure data integrity try re running your selection after some time to resolve this issue if you are still facing issues, feel free to reach out to our support by sending an email to support\@deselect com