You cannot place multiple products or services in one ad on okidoki. The exception is advertisements containing several products that make up a set or correspond to one section.
Example: In the Mobile Phones section, you can place multiple items in one ad as long as they both form a bundle and qualify for that section. For example, a mobile phone and a case for it.
Ads that do not comply with these rules are rejected. If this is the case, you will need to fix it in order for your ad to run again.