Do you report all times in UTC instead? If not, what do you...

Why not create a separate dataset which runs that exact query for you?

Could it be that the 2022 box is using TLS 1.2+ and the others are using a lower (and now invalid) version?

Use environment variables to control the values of connection strings and other parameters which vary between environments.

Here is a link to get you started: https://www.mssqltips.com/sqlservertip/4810/setup-environment-variables-in-sql-server-integration-services/

OK, then consider putting all of your data into a single (wide) temp table, adding a 'GroupNo' column for each dataset. Filter on the GroupNo within SSRS to split out...

OK, then you have a detailed mapping exercise ahead of you, to work out exactly which data items go where and under what conditions.

Hopefully, the systems contain DateCreated and DateModified...

Are all the datasets coming from the same database?

OK, is it fair to assume that you cannot, or should not, modify the design of either of these two databases?

Is it one-way traffic (ie, from A to B but...

Are the databases on the same SQL Server instance?

Does the movement of data need to be instant, or is a lag acceptable?

Do you have any particular software tools in mind...

If your question is as simple as "can data be moved from one database to another in SQL Server?" the answer is yes and there are numerous ways of doing...

However, it's worth noting that FOR XML PATH has some advantages in specific cases, such as handling complex string concatenation, concatenating multiple data points, and managing special characters more...

As for SSIS, I really do not understand why some smart people believe it does better job than other methods, good old bulk insert for example. MS SQL never...

Without sample data and DDL it's not easy to provide working code.

But in pseudo-code, something like this

select sum(iif(date in last month), value, 0)

That's good advice from Frederico.

Sorts in SSIS are to be avoided if possible, as they are blocking components and perform very much worse than in-database sorts.

If your tables reside on...

You could build the pivot dynamically in T-SQL (sample link), but getting that out of SSIS and into Excel is extremely tricky, because SSIS likes to know its columns...