Hi @Shruti1  As mentioned earlier, you need to un-select the "Keep interim results "option and since you've got a large number of workflows and you could be it but phase a few workflows at a time to avoid to overwhelm the cleanup process. Once it's done as also mentioned you can require a DB VACCUUM...

HI @Shruti1  These tables are created as part of workflow and delivery execution, they hold the target audience for that particular delivery. We are back to the fact that you keep the interim results in your workflow and these tables won't be purged by the standard cleanup process. Please do apply b...

I reinforce what Craig is saying, you CANNOT tick this option across all your workflows. It goes against all the best practices and is ut your data storage out of control. If you have to validate the target audience prior sending a communication, use the Approval process as sus-mentioned but please ...

Hi @Beth-March2023  That's correct, domain delegation is only for production environment and not lower environments. In lower, Adobe provides a UNIQUE sender domain across all its customer base. What performance do you want to test: marketing communications or transactional communications. In both c...

Hi @Shruti1  What company are you working with? I would need the customer name to try to find your CSM. Thanks a lot Denis

Hi @Shruti1    Mid-sourcing is done 1st and is carried over by Adobe via a Customer Care ticketCustomer is responsible to upgrade their instances, I would recommend to engage Adobe Service Consulting to assist you in the upgrade and you would get into contact to your Adobe Customer Success Manager. ...

Hi @Shruti1  No it's totally different, Delivery Server owns the elements used across all instances sending emails. It's a single environments which information are synchronised daily to all instances sending emails.... Thanks Denis

Hi @Shruti1  Deliverability Server is solely managed by Adobe and is containing all the required information to ensure emails are sent as per ISPs known requirements: throttling, etc...  For Hybrid, it is used by the mid-sourcing instance when emails are sent and on the marketing side, you have to c...

Hi @Shruti1  That changes indeed the topic. have they done the migration to the new Deliverability Server on the marketing instance. Instructions to migrate to new Deliverability Server can be found here https://experienceleague.adobe.com/docs/campaign-classic/using/technotes/technote-migration/deli...

Hi @Shruti1  Stop the workflow as off now and plan the upgrade properly on your end, Every customer is different however when it comes to upgrade, you have to follow your internal procedure, your instance on 9342 will be fine for couple of months while you are working on the upgrade project. but do ...