Sri Lanka Cricket came under fire after fans struggled to get hold of tickets. The officials and reporters were blocked from entering the R Premadasa Stadium for Tuesday's match between the home side and the West Indies.
The ICC said changes to the stadium, including the relocation of the media enclosure, meant new access arrangements were necessary.
"We need to ensure that, in future, those arrangements are worked through thoroughly and also communicated to the relevant stakeholders," the International Cricket Council (ICC) told AFP in a statement.
"We will seek to do that in time for the next match at the R Premadasa Stadium on Feb 26."
The privately run Daily Mirror of Colombo said Sri Lanka Cricket security authorities had "mucked up" arrangements for the day-night warm-up match, which Sri Lanka won by four wickets.
The paper said the ICC's media manager for Sri Lanka, Brian Murgatroyd, was also initially blocked from entering the venue.
The privately run Island newspaper said confusion over where fans could buy tickets added to the chaos, with the only sales booth situated one kilometre (half a mile) away.
The R Premadasa stadium is due to host seven matches.
Sri Lanka, the 1996 World Champions, are in Group A with defending champions Australia, New Zealand, Pakistan, Zimbabwe, Canada and Kenya.