Start with the organization's own list
Needs differ by organization. PAWS Malaysia lists specific items such as pet food, bowls and cat litter. The Salvation Army Malaysia says it accepts selected new or pre-loved goods in good condition.
Use those examples as a reminder to check each organization's own list. Do not assume that a charity can use an item just because it seems generally useful.
Official sources
Check the item and its condition
Compare what you have with the requested description. Check sizes, type, quantity and condition where the organization specifies them. The Salvation Army Malaysia says it accepts items that are still in good condition and cannot accept items with something wrong with them.
If the list is unclear or the item is not listed, ask the organization through the contact details on its own website before bringing it.
Official sources
Arrange the handover first
Do not assume a drop-off is available at any time. SUKA Society says donated items are screened for suitability and asks people to arrange drop-off in advance because its storage space is limited.
Check the delivery location, time and any instructions on the charity's official page. If you cannot find them, use the charity's own contact page to ask before travelling.
Official sources
Check again before you go
Wishlists change as items arrive and programmes change. Reopen the official page before delivery and follow any latest notice from the organization.
Charity Malaysia links to public information. The organization itself can confirm whether it can accept your item now.