I am attempting to import and update existing memberships into 4.6.8, using the same steps that have worked successfully previously, but I'm getting an error.
I have created a .csv file with (existing) Membership ID, (new) Start Date, (new) End Date, and Membership Type. For Membership Type I had used the text Monthly Sustaining Membership successfully in the past. I switched to import Membership Type ID of 2 after my first import error. I believe Membership Type ID (not the text value) is now required.
On attempted import, I get the error "CiviCRM has detected invalid data and/or formatting errors in 40 records. These records have not been imported. You can Download Errors. You may then correct them, and import the new file with the corrected data."
I download the errors. The reason for the error for each record is "The membership cannot be saved because the status cannot be calculated." I have not received this error with previous successful imports.
The Start date for the updated membership is the same as the End date for the previous monthly membership, not a problem with past imports.
I don't want to simply import these as new memberships, I want to update the existing memberships.
Any help appreciated. Thanks so much.