Is there/Whats the doodad limit?
256 doodads. Same as locations. Check the references under tutorials.
There is around 255 max doodads, which i doubt you will need except ur making a huge rpg!

Note that this is the limit for actual doodads, placed in SE/SCXE. If you use terrain and sprites, these don't count. There is no limit on terrain, but there is one on sprites. I'm not positive what it is, though.
The sprite limit is 2048. Any sprites after that will not appear, for example if you have 1548 terrain sprites and 500 units, a unit creation will give you the "Cannot creature more units" error.
I thought the sprite limit was 1024? How can you place 1548 terrain sprites...
No, the sprite limit is not 1024. How on earth would you place 1650 units without using at least 1650 sprites?
Staredit sprite limit: 1024
That was from Map Limits by DK in reference lists.
You can place sprites in Staredit? Since when?
Maybe if forget since I haven't used vanilla staredit in ages...